

    * {
        padding: 0;
        margin: 0;
    }

    .clear::after {
        content: '';
        display: block;
        clear: both;
    }

    header {
        width: 100%;
        height: 80px;
        background-color: antiquewhite;
    }

    main {
        width: 100%;
        height: 90vh;
        /* background-color: skyblue; */
    }

    main>nav {
        width: 200px;
        height: 100%;
        /* background-color: yellow; */
        float: left;
    }

    main>section {
        width: 100%;
        height: 100%;
        /* background-color: grey; */
        float: left;
        /* padding: 50px; */
        box-sizing: border-box;
    }
    header{
        height: 80px;
        line-height: 80px;
        background-color: RGB(93,221,191);
        text-align: center;
        font-size: 30px;
        font-weight: 700px;
        position: relative;
        background-image: linear-gradient(90deg,RGB(175,213,243),RGB(112,176,218));
    }
    header>p{
        width: 500px;
        height: 80px;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }
    .portrait{
        width: 350px;
        height: 80px;
        position: absolute;
        right: 100px;
    }
    .portrait>div{
        float: left;
    }
    .portrait>div:first-child>img{
        width: 70px;
        height: 70px;
        border-radius: 50%;
    }
    .portrait>div{
        font-size: 16px;
    }
    .portrait>div:last-child>p{
        display: inline-block;
    }
    .portrait>div:last-child>button{
        height: 40px;
        width: 100px;
        margin-top: 20px;
        text-align: center;
        line-height: 40px;
        margin-left: 30px;
        border:none;
    }
    .portrait>div:last-child>button:hover{
            color: red;
            background-color: RGB(231,231,231);
    }
    #quit>p{
        height: 70px;
    }
    #mianNav{
        background-image: linear-gradient(RGB(112,176,218),RGB(175,213,243));
        float: left;
        width: 10%;
        height: 850px;
        border: none;
        border-radius: 0;
    }
    main{
        width: 90%;
        float: left;
    }
    #mianNav ul,#mianNav div,#mianNav ul>li{
        padding:0;
        width: 100%;
    }
    #mianNav ul>li{
        padding: 5px 0;
        font-size: 20px;
        font-weight: 600;
        color: white !important;
    }
    
    .mianActive{
        background-color: white;
        border-radius: 5px;
    }
table,thead th{
    text-align: center;
}
